Low Self-Discharge AA NiMh (Nickel Metal Hydride) Rechargeable Batteries
LSD NiMh (Low-Self Discharge Nickel Metal Hydide) batteries, are the latest generation in NiMh battery chemistry.
In standard NiMh rechargeable, the discharge rate is high.
This means that a regular NiMh battery, regardless of size : AA, AAA, C, D or 9 volt, will become depleted of it’s power while sitting unused on the shelf quite quickly – somewhere in the neighborhood of between 40-60 days.
Low Self-Discharge batteries can maintain their state of charge for up to 2 years but they are lower in capacity than regular discharge batteries. With NiMh chemistry being so popular for today’s consumer, it isn’t hard to see how popular Low Self-Discharge Batteries are much in demand.
Low Self-Discharge, or low discharge, at it is commonly referred to, was originally manufactured by Sanyo in 2005. They marketed it as their product called “Eneloop”. Since then, other battery makers began offering LSD NiMh rechargeables as well. Low Self-Discharge batteries are commonly marketed as “ready-to-use” indicated that no per-charge is required before the first use.
Applications where LD AA batteries are the most appreciated are in high-drain situations such as: photography equipment and radio-controlled toys, and because of their slow discharge rate, are also good for long-term, low current devices, namely battery operated clocks and remote controls. Let’s talk a little bit about what makes NiMh rechargeable batteries so widely used. One thing that greatly separates them from NiCd (Nickel Cadmium) batteries, which are also rechargeable, is that they suffer no “memory effect”. Memory effect happens when a battery has not been fully drained prior to re-charging. The battery then “remembers” the new, lower level of power within it. This occurs in NiCd rechargeable batteries therefore it’s always recommended to fully deplete a NiCd battery of it's power (also known as discharge it) before recharging, so as to avoid this effect and preserve the full battery life.NiMh rechargeable batteries do NOT experience this effect. Recharging can be done at anytime, without concern for how much voltage remains in it at time of recharge.
Low Self-Discharge batteries release their stored power at a much slower rate to being with, thus, lengthening the time between recharging as well. Low self-discharge batteries are lower in capacity than regular discharge batteries, but can maintain their state of charge on the shelf for up to two years. Schools are one of the best examples that benefit from low discharge AA cells since they use them from September through June and then close down for the summer months. When they reopen in the fall, their AA LD cells still have power to begin the school year.
At the top of this page, you’ll see our inventory of Low Self-Discharge AA NiMh Rechargeable Batteries. These are offered in singles, as well as in quantities of 2, 4, 8, 12, 16, 24 and 48.
We accept purchase orders from: The Private and Public sectors, Non-Profit Organizations and Institutions, Municipal, State, and Federal Government Agencies and Departments, Schools and Universities, Laboratories, The Hotel Industry, and All Volume Users of Rechargeable Batteries and Chargers.
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Should you have any questions about batteries and charger combos before you purchase, we encourage you to contact us with your queries to get the accurate, technical information you need. We’re always happy to assist you!
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